222302121 has 8 divisors (see below), whose sum is σ = 299122560. Its totient is φ = 146841552.

The previous prime is 222302053. The next prime is 222302161. The reversal of 222302121 is 121203222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222302121 - 2⁷ = 222301993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222302121.

It is not an unprimeable number, because it can be changed into a prime (222302161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339585 + ... + 340238.

It is an arithmetic number, because the mean of its divisors is an integer number (37390320).

Almost surely, 2^222302121 is an apocalyptic number.

It is an amenable number.

222302121 is a deficient number, since it is larger than the sum of its proper divisors (76820439).

222302121 is a wasteful number, since it uses less digits than its factorization.

222302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679935.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222302121 is about 14909.7994956337. The cubic root of 222302121 is about 605.7794484362.

Adding to 222302121 its reverse (121203222), we get a palindrome (343505343).

The spelling of 222302121 in words is "two hundred twenty-two million, three hundred two thousand, one hundred twenty-one".